
/**
 * 获取uuid
 */
export function getUUID () {
  return `xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx`.replace(/[xy]/g, function (c) {
               let r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
               return v.toString(16);
           }).toUpperCase();
}

